<template>
  <div class="rating-select">
    <div class="rating-type border-bottom-1px">
      <span @click="select(2)" class="block positive" :class="{'active':selectType===2}">{{desc.all}}
        <span class="count">{{ratings.length}}</span>
      </span>
      <span @click="select(0)" class="block positive" :class="{'active':selectType===0}">{{desc.positive}}
        <span class="count">{{positives.length}}</span>
      </span>
      <span @click="select(1)" class="block negative" :class="{'active':selectType===1}">{{desc.negative}}
        <span class="count">{{negatives.length}}</span>
      </span>
    </div>
    <div @click="toggle" class="switch" :class="{'on':onlyContent}">
      <span class="icon-check_circle"></span>
      <span class="text">只看有内容的评价</span>
    </div>
  </div>
</template>

<script>
const POSITIVE = 0
const NEGATIVE = 1
const ALL = 2

const EVENT_SELECT = 'select'
const EVENT_TOGGLE = 'toggle'

export default {
  props: {
    ratings: Array,
    selectType: {
      type: Number,
      default: ALL
    },
    onlyContent: {
      type: Boolean,
      default: false
    },
    desc: {
      type: Object,
      default() {
        return {
          all: '全部',
          positive: '满意',
          negative: '不满意'
        }
      }
    }
  },
  computed: {
    positives() {
      return this.ratings.filter((rating) => {
        return rating.rateType === POSITIVE
      })
    },
    negatives() {
      return this.ratings.filter((rating) => {
        return rating.rateType === NEGATIVE
      })
    }
  },
  methods: {
    select(type) {
      this.$emit(EVENT_SELECT, type)
    },
    toggle() {
      this.$emit(EVENT_TOGGLE)
    }
  },
  components: {}
}
</script>

<style lang='stylus' scoped>
  @import "~common/stylus/variable"

  .rating-select
    .rating-type
      padding: 18px 0
      margin: 0 18px
      .block
        display: inline-block
        padding: 8px 12px
        margin-right: 8px
        line-height: 16px
        border-radius: 1px
        font-size: $fontsize-small
        color: $color-grey
        &.active
          color: $color-white
        .count
          margin-left: 2px
        &.positive
          background: $color-light-blue
          &.active
            background: $color-blue
        &.negative
          background: $color-light-grey-s
          &.active
            background: $color-grey
    .switch
      display: flex
      align-items: center
      padding: 12px 18px
      line-height: 24px
      border-bottom: 1px solid $color-row-line
      color: $color-light-grey
      &.on
        .icon-check_circle
          color: $color-green
      .icon-check_circle
        margin-right: 4px
        font-size: $fontsize-large-xxx
      .text
        font-size: $fontsize-small
</style>
